Data Report
Bulletin / 2021-07
Contributed by CUPWA
Date 2021-07-04
Origin Time 0041 43.71 +- 0.46
Zone 50
Easting 522.62 +- 4.32 Longitude 117.238
Northing 6526.11 +- 3.29 Latitude -31.399
Depth 5.35 +- 10.78
Arrival times = 13 S.D. = 0.146 Seismographs = 9
Nearest recorder = 38.5 km Gap = 100.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
16 km SW (224 deg) of WYAX
WESTERN AUSTRALIA
145 km NE ( 65 deg) of PERTH
28 km N ( 2 deg) of Cunderdin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEKS i P 50.00 0.05 1.56 50.05 -0.05 38.5 209 8.2 8.2
MEKS S 54.60 1.00 0.77 54.46 0.14 38.5 209 8.2 8.2
KLBR i P 52.50 0.10 1.33 52.48 0.02 53.5 113 6.0 6.0
KLBR S 58.60 0.50 0.87 58.57 0.03 53.5 113 6.0 6.0
KORD P 53.90 0.10 1.31 54.05 -0.15 63.2 23 4.9 4.9
KORD S 61.10 1.00 0.74 61.22 -0.12 63.2 23 4.9 4.9
CADX P 55.60 0.10 1.30 55.25 0.35 70.5 352 4.6 4.6
BLDU P 60.03 0.20 1.10 60.18 -0.15 100.8 329 3.2 3.2
BLDU S 71.50 1.00 0.72 71.60 -0.10 100.8 329 3.2 3.2
WATG P 62.90 0.10 1.24 62.94 -0.04 117.7 51 2.7 2.7
PINW P 63.50 0.10 1.24 63.51 -0.01 121.8 190 -30.8 30.8
WLBG P 63.50 0.10 1.24 63.54 -0.04 122.1 310 -30.8 30.8
BCON P 64.50 0.20 1.07 64.41 0.09 128.2 23 -30.8 30.8
13 times used, S = 0.146
Deferred Data
MEKN P 51.65 0.10 1.39 48.73 2.92 30.3 224 10.4 10.4
MUN P 62.30 0.20 1.08 62.78 -0.48 116.8 236 2.7 2.7
WATG S 76.80 1.00 0.71 76.27 0.53 117.7 51 2.7 2.7
PINW S 77.70 1.00 0.70 77.40 0.30 121.8 190 2.6 2.6
HYDN P 74.20 0.20 1.04 73.10 1.10 193.0 127 -42.2 42.2
HYDN S 97.40 1.00 0.68 95.07 2.33 193.0 127 -40.3 40.3
DBYG P 78.10 0.20 1.02 77.50 0.60 229.1 168 -42.2 42.2
DBYG S 107.10 1.00 0.66 102.72 4.38 229.1 168 -40.3 40.3
Velocity Ratios
MEKS KLBR KORD BLDU
MEKS 1.73 0.00 0.00 0.00
0.17 0.00 0.00 0.00
KLBR 0.00 1.69 0.00 0.00
0.00 0.08 0.00 0.00
KORD 0.00 0.00 1.71 0.00
0.00 0.00 0.12 0.00
BLDU 0.00 0.00 0.00 1.70
0.00 0.00 0.00 0.08
Date 2021-07-18
Origin Time 2134 5.92 +- 2.30
Zone 50
Easting 622.54 +- 15.70 Longitude 118.325
Northing 6251.09 +- 7.51 Latitude -33.873
Depth 7.37 +- 23.07
Arrival times = 9 S.D. = 0.237 Seismographs = 6
Nearest recorder = 74.2 km Gap = 203.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
6 km W (260 deg) of ONGR
WESTERN AUSTRALIA
315 km SE (133 deg) of PERTH
132 km N ( 19 deg) of ALBANY
31 km E ( 78 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
AALB 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
DBYG P 18.22 0.10 1.29 18.09 0.13 74.2 312 5.9 5.9
DBYG S 26.90 1.00 0.73 26.52 0.38 74.2 312 5.9 5.9
AALB P 27.00 0.20 1.07 26.79 0.21 130.7 196 -30.8 30.8
AKUL P 27.32 0.20 1.07 27.33 -0.01 134.4 353 -30.8 30.8
AKUL S 43.35 1.00 0.70 43.11 0.24 134.4 353 3.3 3.3
NWAO PG 29.60 0.20 1.06 29.77 -0.17 146.0 315 3.0 3.0
NWAO S 46.30 1.00 0.69 46.26 0.04 146.0 315 -23.9 23.9
RKGY P 29.16 0.20 1.06 29.31 -0.15 148.5 236 -30.8 30.8
PINW PG 37.80 0.20 1.03 38.20 -0.40 197.8 321 2.2 2.2
9 times used, S = 0.237
Deferred Data
NWAO P 29.60 0.20 1.06 28.96 0.64 146.0 315 -30.8 30.8
RKGY S 45.70 1.00 0.69 46.89 -1.19 148.5 236 -23.9 23.9
HYDN P 33.72 0.20 0.98 31.71 2.01 165.8 17 -30.8 30.8
HYDN S 52.70 0.10 1.09 51.20 1.50 165.8 17 -40.3 40.3
PINW P 37.80 0.20 1.03 35.67 2.13 197.8 321 -42.2 42.2
KLBR P 44.90 0.20 1.01 43.05 1.85 258.6 347 -42.2 42.2
MEKS P 48.10 0.30 0.93 44.32 3.78 269.2 333 -42.2 42.2
MUN P 48.30 0.30 0.92 46.67 1.63 288.6 316 -42.2 42.2
MUN S 80.40 1.00 0.65 77.08 3.32 288.6 316 -40.3 40.3
KORD P 54.90 0.30 0.91 53.00 1.90 341.1 346 -42.2 42.2
Velocity Ratios
DBYG AKUL
DBYG 1.71 0.00
0.10 0.00
AKUL 0.00 1.75
0.00 0.06
Date 2021-07-19
Origin Time 0812 49.63 +- 0.31
Zone 50
Easting 523.56 +- 2.53 Longitude 117.247
Northing 6576.12 +- 2.29 Latitude -30.948
Depth 4.32 +- 10.06
Arrival times = 11 S.D. = 0.135 Seismographs = 9
Nearest recorder = 22.5 km Gap = 112.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
18 km SE (144 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 50 deg) of PERTH
18 km SE (128 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
CADX i P 53.42 0.03 1.80 53.38 0.04 22.5 332 11.6 11.6
CADX S 56.02 0.30 1.02 55.98 0.04 22.5 332 11.6 11.6
KORD P 53.68 0.10 1.40 53.89 -0.21 25.7 72 9.7 9.7
KORD S 57.00 0.50 0.92 56.85 0.15 25.7 72 9.7 9.7
BLDU P 59.80 0.20 1.14 60.02 -0.22 63.5 305 4.2 4.2
BCON P 63.50 0.10 1.28 63.37 0.13 84.1 36 3.1 3.1
MEKS P 63.81 0.10 1.28 63.66 0.15 85.9 193 3.0 3.0
KLBR P 63.62 0.10 1.28 63.71 -0.09 86.2 146 3.1 3.1
WATG P 65.05 0.10 1.27 65.00 0.05 94.1 75 2.7 2.7
PINW P 76.52 0.20 1.05 76.46 0.06 171.4 187 -30.8 30.8
NWAO P 82.30 0.30 0.94 82.34 -0.04 219.3 180 -42.2 42.2
11 times used, S = 0.135
Deferred Data
BLDU S 67.50 1.00 0.74 67.23 0.27 63.5 305 4.2 4.2
BCON S 73.40 1.00 0.73 72.89 0.51 84.1 36 3.1 3.1
WATG S 75.90 1.00 0.72 75.66 0.24 94.1 75 2.7 2.7
MUN P 74.00 0.20 1.06 73.61 0.39 150.9 220 -30.8 30.8
MUN S 91.00 1.00 0.69 91.34 -0.34 150.9 220 1.7 1.7
PINW S 97.00 1.00 0.68 96.63 0.37 171.4 187 -40.3 40.3
AKUL P 80.40 0.20 1.03 81.14 -0.74 209.2 156 -42.2 42.2
AKUL S 103.80 1.00 0.67 104.65 -0.85 209.2 156 -40.3 40.3
MORW P 85.30 0.30 0.94 84.69 0.61 238.7 330 -42.2 42.2
MORW S 111.90 1.00 0.66 110.84 1.06 238.7 330 -40.3 40.3
ONGR P 97.70 0.30 0.91 97.04 0.66 340.8 161 -42.2 42.2
Velocity Ratios
CADX KORD
CADX 1.69 0.00
0.09 0.00
KORD 0.00 1.82
0.00 0.17
Date 2021-07-19
Origin Time 1415 38.59 +- 0.78
Zone 50
Easting 561.52 +- 8.52 Longitude 117.651
Northing 6468.74 +- 5.09 Latitude -31.915
Depth 2.00 +- 26.75 N
Arrival times = 8 S.D. = 0.167 Seismographs = 6
Nearest recorder = 21.3 km Gap = 130.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
21 km NW (332 deg) of COR2
WESTERN AUSTRALIA
170 km E ( 89 deg) of PERTH
32 km S (192 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COR2 P 41.92 0.10 1.42 42.08 -0.16 21.3 152 6.2 6.2
COR2 S 44.72 0.50 0.93 44.50 0.22 21.3 152 6.2 6.2
KLBR P 44.52 0.10 1.37 44.68 -0.16 37.2 15 3.6 3.6
KLBR S 48.90 1.00 0.78 48.90 0.00 37.2 15 3.6 3.6
MEKS P 48.82 0.10 1.31 48.81 0.01 62.6 292 2.0 2.0
PINW P 52.90 0.10 1.27 52.88 0.02 87.5 224 1.4 1.4
KORD P 57.50 0.10 1.24 57.51 -0.01 115.9 353 1.0 1.0
WATG P 61.71 0.20 1.06 61.37 0.34 141.1 21 -30.8 30.8
8 times used, S = 0.167
Deferred Data
QUAI S-P 5.00 5.00 0.64 3.00 2.00 26.4 245 0.0 0.0
AKUL P 55.54 0.10 1.26 54.27 1.27 96.1 150 1.4 1.4
AKUL S 68.70 1.00 0.72 65.13 3.57 96.1 150 1.4 1.4
KORD S 71.00 1.00 0.71 70.63 0.37 115.9 353 1.0 1.0
MUN P 59.90 0.20 1.07 60.74 -0.84 136.5 266 -30.8 30.8
BLDU P 65.05 0.30 0.97 65.44 -0.39 170.0 328 -30.8 30.8
BCON P 66.90 0.20 1.04 66.19 0.71 175.4 3 -30.8 30.8
Velocity Ratios
COR2 KLBR
COR2 1.84 0.00
0.21 0.00
KLBR 0.00 1.74
0.00 0.20
Date 2021-07-24
Origin Time 0905 16.96 +- 0.97
Zone 50
Easting 634.99 +- 8.00 Longitude 118.432
Northing 6440.46 +- 5.45 Latitude -32.164
Depth -0.16 +- 26.62
Arrival times = 10 S.D. = 0.190 Seismographs = 6
Nearest recorder = 51.7 km Gap = 135.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
51 km NW (307 deg) of HYDN
WESTERN AUSTRALIA
245 km E ( 96 deg) of PERTH
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
HYDN P 25.15 0.30 1.07 25.39 -0.24 51.7 127 -0.1 -0.1
HYDN S 31.55 1.00 0.76 31.24 0.31 51.7 127 -0.1 -0.1
KLBR P 31.73 0.10 1.27 31.67 0.06 90.2 314 0.1 0.1
KLBR S 41.92 1.00 0.72 41.87 0.05 90.2 314 0.1 0.1
PINW P 39.35 0.30 0.98 39.65 -0.30 139.1 254 -30.8 30.8
NWAO P 40.07 0.10 1.22 39.89 0.18 140.7 232 -30.8 30.8
NWAO S 55.84 1.00 0.69 55.84 0.00 140.7 232 0.0 0.0
WATG S 61.30 1.00 0.69 61.24 0.06 160.3 352 -0.0 -0.0
KORD P 43.67 0.20 1.05 43.65 0.02 167.7 328 -30.8 30.8
KORD S 63.20 1.00 0.68 63.30 -0.10 167.7 328 -0.0 -0.0
10 times used, S = 0.190
Deferred Data
WATG P 43.11 0.20 1.05 42.61 0.50 160.3 352 -30.8 30.8
BCON P 50.42 0.20 1.03 49.33 1.09 212.4 342 -42.2 42.2
Velocity Ratios
HYDN KLBR NWAO KORD
HYDN 1.78 0.00 1.63 1.71
0.19 0.00 0.18 0.16
KLBR 0.00 1.69 0.00 0.00
0.00 0.08 0.00 0.00
NWAO 1.63 0.00 1.68 0.00
0.18 0.00 0.05 0.00
KORD 1.71 0.00 0.00 1.73
0.16 0.00 0.00 0.05
Date 2021-07-27
Origin Time 1152 19.46 +- 0.74
Zone 50
Easting 523.58 +- 5.83 Longitude 117.247
Northing 6576.54 +- 6.77 Latitude -30.944
Depth 3.15 +- 23.11
Arrival times = 9 S.D. = 0.146 Seismographs = 6
Nearest recorder = 25.6 km Gap = 125.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
18 km SE (143 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 50 deg) of PERTH
17 km SE (127 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KORD i P 23.46 0.10 1.40 23.67 -0.21 25.6 73 7.2 7.2
KORD S 26.52 0.50 0.92 26.59 -0.07 25.6 73 7.2 7.2
BLDU P 29.82 0.10 1.31 29.80 0.02 63.3 305 3.2 3.2
BCON P 33.10 0.10 1.28 33.13 -0.03 83.7 36 2.4 2.4
BCON S 42.90 1.00 0.73 42.61 0.29 83.7 36 2.4 2.4
KLBR P 33.70 0.10 1.28 33.59 0.11 86.5 146 2.3 2.3
WATG P 34.85 0.20 1.10 34.80 0.05 94.0 75 2.0 2.0
WATG S 45.70 1.00 0.72 45.44 0.26 94.0 75 2.0 2.0
NWAO P 52.30 0.20 1.02 52.35 -0.05 219.7 180 -42.2 42.2
9 times used, S = 0.146
Deferred Data
KLBR S 43.80 1.00 0.73 43.38 0.42 86.5 146 2.3 2.3
Velocity Ratios
KORD BCON WATG
KORD 1.77 1.70 1.68
0.17 0.19 0.18
BCON 1.70 1.72 0.00
0.19 0.09 0.00
WATG 1.68 0.00 1.71
0.18 0.00 0.09
Date 2021-07-27
Origin Time 1336 48.06 +- 3.39
Zone 50
Easting 523.77 +- 14.59 Longitude 117.249
Northing 6578.30 +- 19.18 Latitude -30.928
Depth 2.38 +- 411.47
Arrival times = 6 S.D. = 0.122 Seismographs = 5
Nearest recorder = 24.9 km Gap = 132.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
17 km SE (139 deg) of CAS
WESTERN AUSTRALIA
175 km NE ( 50 deg) of PERTH
17 km SE (121 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KORD P 52.01 0.10 1.41 52.15 -0.14 24.9 76 5.7 5.7
KORD S 55.20 1.00 0.80 54.98 0.22 24.9 76 5.7 5.7
BLDU P 58.25 0.10 1.31 58.25 -0.00 62.4 304 2.5 2.5
KLBR P 62.30 0.20 1.11 62.40 -0.10 87.9 147 1.8 1.8
MEKS P 62.50 0.10 1.27 62.42 0.08 88.0 193 1.7 1.7
WATG P 63.40 0.20 1.10 63.30 0.10 93.4 76 1.5 1.5
6 times used, S = 0.122
Deferred Data
BCON P 61.70 0.20 1.12 61.47 0.23 82.2 36 1.9 1.9
MEKS S 72.80 1.00 0.72 72.38 0.42 88.0 193 1.7 1.7
PINW P 75.20 0.20 1.05 75.35 -0.15 173.6 187 -30.8 30.8
DBYG P 88.10 0.20 1.00 88.36 -0.26 280.3 170 -42.2 42.2
Velocity Ratios
KORD
KORD 1.81
0.31